Speak of depressed land (5,4)

I believe the answer is:

touch down

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'land' is the definition.
(touching down is a kind of landing)

'speak of depressed' is the wordplay.
'speak of' becomes 'touch' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'depressed' becomes 'down' (synonyms).
'touch'+'down'='TOUCH-DOWN'

Can you help me to learn more?

(Other definitions for touch down that I've seen before include "Land" , "Reach end of flight" .)

I've seen this clue in The Hindu.

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